Complex direct comb spectroscopy with a virtually imaged phased array

A broadband picometer resolution visible CCD spectrometer based on virtually imaged phased array technology

“…After being horizontally dispersed by the grating, near-equidistant fringes are formed. 32,33 Therefore, the spectral coverage of the VIPA spectrometer can be evaluated by the number of strips ( N stripe ). Fig.…”

Recent advances in collisional effects on spectra of molecular gases and their practical consequences

“…For quantitative absorption measurements, one must account for the mismatch between the cavity modes and the comb teeth caused by broadband and resonant dispersion in the cavity [86]. Examples of spectra with individual line shapes having SNR over 100 were presented for CO [86] and HCN [89]. In the latter case, both absorption and dispersion spectra were recorded.…”

Optical Frequency Comb Faraday Modulation Rotation Spectroscopy

“…To fully exploit the unique features of the OFC, spectrometers that offer both broad bandwidth and high spectral resolution have been developed. These primarily include systems based on time-domain interferometry, such as Fourier transform spectroscopy (FTS) [4][5][6][7] and dual-comb spectroscopy (DCS) [8][9][10][11], as well as systems that utilize spatial dispersion, such as virtually imaged phased array spectrometers [12][13][14][15]. Among these, the OFC-FTS system boasts of the least system cost by employing a single photoelectric detector for measurement.…”